Fun Under the Sun in July

"We've been doing this for years," said Marisa Vallbona, PR consultant for 7-Eleven. "This year is different in that we've never had a grand prize this big."

Free or Cheap Things to Do in San Diego

What's the grand prize? The person who downs the most Slurpee in 84 seconds will win their very own Slurpee party at their home, Vallbona said. The ultimate Slurpee drinking contest will be held at the 7-Eleven at 4080 Convoy St. from 6 a.m. to 9 a.m.

"People might want to start practicing now to avoid brain-freeze," Vallbona said. "They'll be competing against locations all over country."

While winning would be great, with the warm weather we've been having, the attempt alone would be satisfying enough.